. . "Vlastnosti bezsl\u00EDnkov\u00FDch kompozit\u016F po tepeln\u00E9m nam\u00E1h\u00E1n\u00ED"@cs . . "slag, alkali-activation, high temperatures"@en . "Beton na b\u00E1zi Portlandsk\u00E9ho cementu je jedn\u00EDm z nejpou\u017E\u00EDvan\u011Bj\u0161\u00EDch stavebn\u00EDch materi\u00E1l\u016F sou\u010Dasnosti. Jedn\u00E1 se o sl\u00EDnkov\u00FD kompozit, jeho\u017E vynikaj\u00EDc\u00ED mechanick\u00E9 vlastnosti jej p\u0159edur\u010Duj\u00ED pro vyu\u017Eit\u00ED jako nosn\u00E9ho konstruk\u010Dn\u00EDho materi\u00E1lu. Tak\u00E9 z hlediska protipo\u017E\u00E1rn\u00ED ochrany jej lze pova\u017Eovat za materi\u00E1l s vysok\u00FDm bezpe\u010Dnostn\u00EDm faktorem, nebo\u0165 je neho\u0159lav\u00FD a ani k ho\u0159en\u00ED nijak nep\u0159isp\u00EDv\u00E1. Nicm\u00E9n\u011B p\u0159i vystaven\u00ED vysok\u00FDm teplot\u00E1m nebo ohni doch\u00E1z\u00ED k ne\u017E\u00E1douc\u00ED rychl\u00E9 degradaci, dramatick\u00E9mu poklesu pevnost\u00ED, tvorb\u011B trhlin, p\u0159\u00EDpadn\u011B odpr\u00FDsk\u00E1v\u00E1n\u00ED povrchov\u00FDch vrstev betonu, co\u017E omezuje jeho pou\u017Eit\u00ED pro konstrukce vystaven\u00E9 vysok\u00FDm teplot\u00E1m nebo po\u017E\u00E1ru. Tento jev je nebezpe\u010Dn\u00FD p\u0159edev\u0161\u00EDm u podzemn\u00EDch konstrukc\u00ED. Pokud dojde ke vzniku po\u017E\u00E1ru, n\u00E1r\u016Fst teploty m\u016F\u017Ee b\u00FDt velice rychl\u00FD a ve velmi kr\u00E1tk\u00E9 dob\u011B (3-10 minut) m\u016F\u017Ee dos\u00E1hnout a\u017E 1200 C. Jednou z mo\u017Enost\u00ED, jak se vyhnout tomuto probl\u00E9mu, je zv\u00FD\u0161en\u00ED protipo\u017E\u00E1r" . "3"^^ . "Properties of clinker-free composites after exposure to high temperatures"@en . "Vlastnosti bezsl\u00EDnkov\u00FDch kompozit\u016F po tepeln\u00E9m nam\u00E1h\u00E1n\u00ED"@cs . "164-171" . . "3"^^ . "26110" . "8"^^ . "Portland cement concrete is the most common and widespread material for constructions. However, its undesirable fast degradation, when exposed to very high temperature, connected with compressive strength decrease, cracking and spalling limits the utilization of concrete in constructions endangered by fire. This paper deals with the properties of alkali activated aluminosilicate materials and a possibility their utilization as fire protection. These materials are more resistant against high temperatures, especially against shock loading, than Portland cement concretes. In the experiments we examined and compared the behaviour and properties of concrete specimens made from Portland cement and alkali activated slag after treatment at the temperatures from 200 to 1200 C. The influence of aggregates, comparing quartz sand and electrical porcelain, was also examined."@en . "Bayer, Patrik" . . . "Rovnan\u00EDk, Pavel" . "Beton na b\u00E1zi Portlandsk\u00E9ho cementu je jedn\u00EDm z nejpou\u017E\u00EDvan\u011Bj\u0161\u00EDch stavebn\u00EDch materi\u00E1l\u016F sou\u010Dasnosti. Jedn\u00E1 se o sl\u00EDnkov\u00FD kompozit, jeho\u017E vynikaj\u00EDc\u00ED mechanick\u00E9 vlastnosti jej p\u0159edur\u010Duj\u00ED pro vyu\u017Eit\u00ED jako nosn\u00E9ho konstruk\u010Dn\u00EDho materi\u00E1lu. Tak\u00E9 z hlediska protipo\u017E\u00E1rn\u00ED ochrany jej lze pova\u017Eovat za materi\u00E1l s vysok\u00FDm bezpe\u010Dnostn\u00EDm faktorem, nebo\u0165 je neho\u0159lav\u00FD a ani k ho\u0159en\u00ED nijak nep\u0159isp\u00EDv\u00E1. Nicm\u00E9n\u011B p\u0159i vystaven\u00ED vysok\u00FDm teplot\u00E1m nebo ohni doch\u00E1z\u00ED k ne\u017E\u00E1douc\u00ED rychl\u00E9 degradaci, dramatick\u00E9mu poklesu pevnost\u00ED, tvorb\u011B trhlin, p\u0159\u00EDpadn\u011B odpr\u00FDsk\u00E1v\u00E1n\u00ED povrchov\u00FDch vrstev betonu, co\u017E omezuje jeho pou\u017Eit\u00ED pro konstrukce vystaven\u00E9 vysok\u00FDm teplot\u00E1m nebo po\u017E\u00E1ru. Tento jev je nebezpe\u010Dn\u00FD p\u0159edev\u0161\u00EDm u podzemn\u00EDch konstrukc\u00ED. Pokud dojde ke vzniku po\u017E\u00E1ru, n\u00E1r\u016Fst teploty m\u016F\u017Ee b\u00FDt velice rychl\u00FD a ve velmi kr\u00E1tk\u00E9 dob\u011B (3-10 minut) m\u016F\u017Ee dos\u00E1hnout a\u017E 1200 C. Jednou z mo\u017Enost\u00ED, jak se vyhnout tomuto probl\u00E9mu, je zv\u00FD\u0161en\u00ED protipo\u017E\u00E1r"@cs . . "2007-02-22+01:00"^^ . "Vysok\u00E1 \u0161kola b\u00E1\u0148sk\u00E1 - Technick\u00E1 univerzita Ostrava" . . . "Ostrava" . "Z(MSM0021630511)" . . . "Vlastnosti bezsl\u00EDnkov\u00FDch kompozit\u016F po tepeln\u00E9m nam\u00E1h\u00E1n\u00ED" . "Rovnan\u00EDkov\u00E1, Pavla" . . . "Vlastnosti bezsl\u00EDnkov\u00FDch kompozit\u016F po tepeln\u00E9m nam\u00E1h\u00E1n\u00ED" . "Zpev\u0148ov\u00E1n,\u00ED t\u011Bsn\u011Bn\u00ED a kotven\u00ED horninov\u00E9ho masivu a stavebn\u00EDch konstrukc\u00ED 2007" . . "[271F166377DC]" . "RIV/00216305:26110/07:PU65723" . "RIV/00216305:26110/07:PU65723!RIV07-MSM-26110___" . "978-80-248-1291-5" . . . "458125" . . "V\u0160B-TU Ostrava" . . "Properties of clinker-free composites after exposure to high temperatures"@en .